Calculating Injector Flow rate

[joecar]

Im confused...

Ok... what vehicle do you have, and what fuel-related mods do you have (injectors, pump, regulator...?)...?

[joecar]

You need to do this:

- find out wheather your fuel pressure regulator is vacuum-referenced or not...
if it is, it will be on the fuel rail(s) and have a vacuum hose attached to it;

- find out your fuel pressure:
vacuum-referenced: pull the vac hose and measure it,
non-referenced: measure it;
do you have any [electric/electronic] device that alters pressure...?

- find out injector rated flowrate:
if not stock, what is their rated flowrate and rated pressure...?

[WiseGuyZ06]

Ok... what vehicle do you have, and what fuel-related mods do you have (injectors, pump, regulator...?)...?

2001 corvette z06, racetronix pump w/ hot wire harness, 30# red top's... everything else stock as far as fuel...

[joecar]

What is rail pressure measured using a pressure gauge...?
Does it vary with RPM or load...?

Are the 30# red tops rated at 30 lb/hr @ 43.5 psi, is this correct...?

[WiseGuyZ06]

What is rail pressure measured using a pressure gauge...?
Does it vary with RPM or load...?

Are the 30# red tops rated at 30 lb/hr @ 43.5 psi, is this correct...?

Not too sure... if it varies....

yes as far as I know thats what they are rated for..

[joecar]

2001 corvette z06, racetronix pump w/ hot wire harness, 30# red top's... everything else stock as far as fuel...

Anyone who knows what pressure this runs at, please chime in...

[vetteboy2k]

should be approx 58-60psi

[eboggs_jkvl]

Set it at 58 PSI.

[Bruce Melton]

I ran a stock C5 fuel pump fuel pump with mechanical gauge off the end of the fuel rail. Taped the gauge to the windshield and Seemed to be rock steady @58# thru 89% IJC> SVO 42s. The same with my fancy intank after market pump.

[joecar]

So consensus for Racetronix is 58 psi, same as stock...

And steady across the range of IDC.

Ok, thanks.